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Novel desulfurization spray gun

A desulfurization spray gun and the technology of the spray gun are applied in the field of desulfurization spray guns for molten iron pretreatment, which can solve the problems such as the inability to use a torpedo tanker, and achieve the effects of reducing the spray iron loss, shortening the spraying time, and increasing the contact area.

Inactive Publication Date: 2011-01-19
ANHUI XINHAI ENVIRONMENTAL PROTECTION NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, KR stirring desulfurization is mainly suitable for 180 tons of molten iron ladle, and cannot be used on torpedo tank cars, subject to certain restrictions

Method used

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  • Novel desulfurization spray gun
  • Novel desulfurization spray gun

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Embodiment Construction

[0009] The desulfurization spray gun of the present invention includes an internal spray gun inner tube 1, an external refractory material layer 3, a body 2 arranged between the spray gun inner tube 1 and the refractory material layer 3, and several spray guns are opened at the bottom of the refractory material layer 3 The hole communicates with the inner hole of the spray gun inner tube 1, and is characterized in that: it also includes a swivel joint 4 arranged between the body 2 and the spray hose 5; the swivel joint 4 is a hollow stepped shaft, and its top is connected with the hose 5 is fixedly connected, and its lower part is connected with the body 2, and can rotate with the body 2. The desulfurization spray gun of the present invention is connected with a rotary joint between the spray hose 5 and the body 2, so that the bottom end of the spray gun can move freely in the molten pool by the force of its own jet gas when spraying, and the spray gun gives the molten The poo...

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Abstract

The invention discloses a novel desulfurization spray gun. The novel desulfurization spray gun comprises an internal spray gun inner pipe, an external refractory material layer and a body arranged between the spray gun inner pipe and the refractory material layer, wherein a plurality of spray gun holes communicated with inner holes of the spray gun inner pipe are reserved on the lower part of the refractory material layer. The novel desulfurization spray gun is characterized by further comprising a swivel joint arranged between the body and an injection hose, wherein the swivel joint is a hollow stepped shaft; the upper part of the swivel joint is fixedly connected with the hose, while the lower part is connected with the body; and the swivel joint can rotate together with the body. The spray gun can freely move in a molten pool by means of spraying gas acting force of the spray gun when spraying by adding the swivel joint, so that the stirring function is added to the molten bath; a desulfurizing agent is more dispersedly sprayed into molten iron, the contact area of the desulfurizing agent and sulphur in the molten iron is increased, the desulfurization efficiency is greatly improved, the consumption of the desulfurizing agent is reduced, and the slopping iron loss is effectively reduced.

Description

technical field [0001] The invention relates to a desulfurization spray gun for molten iron pretreatment. Background technique [0002] At present, in order to improve the quality of steel grades, expand varieties, and reduce the cost of steelmaking processes, hot metal desulfurization has become an important means of optimizing the process flow in the modern iron and steel industry. As a key component in the molten iron pretreatment system, the desulfurization spray gun has a great influence on the safe operation of the desulfurization process and the quality of molten iron. The injection hose of the existing spray gun is fixedly connected to the main body, and the entire spray gun is fixed by the upper part, so that the spray gun is static during the injection process, and the contact area between the desulfurizer and the sulfur in the molten iron is small, and the desulfurization The efficiency is low, which increases the consumption of desulfurization agent; at the same...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/064
Inventor 陆启海
Owner ANHUI XINHAI ENVIRONMENTAL PROTECTION NEW MATERIAL CO LTD
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